CLC number: TM914; TM40
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2016-10-17
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Mustafa Gokdag, Mehmet Akbaba. A novel PV sub-module-level power-balancing topology for maximum power point tracking under partial shading and mismatch conditions[J]. Frontiers of Information Technology & Electronic Engineering, 2016, 17(12): 1388-1396.
@article{title="A novel PV sub-module-level power-balancing topology for maximum power point tracking under partial shading and mismatch conditions",
author="Mustafa Gokdag, Mehmet Akbaba",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="17",
number="12",
pages="1388-1396",
year="2016",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.1500322"
}
%0 Journal Article
%T A novel PV sub-module-level power-balancing topology for maximum power point tracking under partial shading and mismatch conditions
%A Mustafa Gokdag
%A Mehmet Akbaba
%J Frontiers of Information Technology & Electronic Engineering
%V 17
%N 12
%P 1388-1396
%@ 2095-9184
%D 2016
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.1500322
TY - JOUR
T1 - A novel PV sub-module-level power-balancing topology for maximum power point tracking under partial shading and mismatch conditions
A1 - Mustafa Gokdag
A1 - Mehmet Akbaba
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 17
IS - 12
SP - 1388
EP - 1396
%@ 2095-9184
Y1 - 2016
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.1500322
Abstract: Partial shading and mismatch conditions among the series-connected modules/sub-modules suffer from a nonconvex power curve with multiple local maxima and decreased peak power for the whole string. Energy transfer between the sub-modules brings them to the same operating voltage, and this collective operation produces a convex power curve, which results in increased peak power for the string. The proposed topology benefits from the switched-capacitor (SC) converter concept and is an application for sub-module-level power balancing with some novelties, including stopping the switching in absence of shading, string-level extension, and a reduced number of power electronics components as compared to those in the literature. Reduction in the number of power electronics components is realized by the fact that two sub-modules share one SC converter. This leads to reduced power electronics losses as well as less cost and volume of the converter circuit. Insertion loss analysis of the topology is presented. The proposed topology is simulated in the PSpice environment, and a prototype is built for experimental verification. Both simulation and experimental results confirm the loss analysis. This proves that with the proposed topology it is possible to extract almost all the power available on the partially shaded string and transfer it to the load side.
The topic of this manuscript is very interesting.
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